Leichter J, Angel J F, Lee M
Can Med Assoc J. 1978 Jan 7;118(1):40-3.
A study was conducted to determine the nutritional status of the free-living elderly population in Vancouver. The response rate of the sample was low. Dietary information from 104 single men and women and 23 couples was collected by the 24-hour recall method. Biochemical tests in 56 single individuals and 13 couples included measurement of hemoglobin concentration and hematocrit, plasma analysis for concentrations of total protein, iron, carotene, vitamin A, ascorbic acid, vitamin E and cholesterol and for transferrin saturation, and urine analysis for concentrations of creatinine, thiamin, riboflavin and N(1)-methylnicotinamide.Mean energy intakes were considerably below the Dietary Standard for Canada. However, mean intakes of individual nutrients were similar to or in excess of the Dietary Standard for Canada for single men and women and for married men. Married women had low average intakes of calcium, iron, thiamin and riboflavin but adequate intakes of other nutrients. Mean values for biochemical variables were within the accepted range as defined by the Interdepartmental Committee of Nutrition for National Defense in the United States. According to the Nutrition Canada definitions of "high risk" there were no individuals in high-risk categories for any biochemical variable except plasma cholesterol concentration and transferrin saturation. The dietary and biochemical data indicated that the nutritional status in this select group of elderly persons was good except for intake of total energy and, in married women, of calcium, iron, thiamin and riboflavin.
开展了一项研究以确定温哥华自由生活的老年人群的营养状况。样本的回应率较低。通过24小时回顾法收集了104名单身男性和女性以及23对夫妇的饮食信息。对56名单身个体和13对夫妇进行了生化检测，包括测量血红蛋白浓度和血细胞比容、分析血浆中总蛋白、铁、胡萝卜素、维生素A、抗坏血酸、维生素E和胆固醇的浓度以及转铁蛋白饱和度，以及分析尿液中肌酐、硫胺素、核黄素和N(1)-甲基烟酰胺的浓度。平均能量摄入量远低于加拿大饮食标准。然而，单身男性和女性以及已婚男性的个别营养素平均摄入量与加拿大饮食标准相近或超过该标准。已婚女性的钙、铁、硫胺素和核黄素平均摄入量较低，但其他营养素摄入量充足。生化变量的平均值在美国国防营养跨部门委员会定义的可接受范围内。根据加拿大营养学会对“高风险”的定义，除血浆胆固醇浓度和转铁蛋白饱和度外，没有个体因任何生化变量而处于高风险类别。饮食和生化数据表明，除了总能量摄入量以及已婚女性的钙、铁、硫胺素和核黄素摄入量外，这一特定老年人群体的营养状况良好。
